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DT Fletcher suggested applying Filter-Sharpen-UnsharpMask, in Photoshop, to
improve fuzzy images.

If you are working with color images, here's another UnsharpMask tip I read
in a journal some years ago and have been using with excellent results ever
since: before sharpening, pull down the IMAGE menu, select MODE, and change
the MODE of your image to LAB (it's probably RGB to begin with), select the
BRIGHTNESS channel only, then apply the UnsharpMask filter to it alone (it
will be black and white). After applying the filter only to the brightness
channel, re-select the LAB channel to again make visible the color in your
image, then re-convert the entire image to RGB from the IMAGE-MODE menu. You
will find that you can apply a much higher degree of sharpening without
distorting your color channels by using this method.  (Don't forget to
SAVE.)

Art Miller
millerja@ismi.net


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